<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<style type="text/css">
.grid {
  border: 1px solid gray;
  font-size: 0;
}
.grid > div {
  display: inline-block;
  margin: 2px;
}
#a { background: #006; height: 46px; width: 96px; }
#b { background: #009; height: 46px; width: 146px; }
#c { background: #00c; height: 46px; width: 46px; }
#d { background: #00f; height: 46px; width: 16px; }
#e { background: #060; height: 96px; width: 96px; }
#f { background: #090; height: 96px; width: 146px; }
#g { background: #0c0; height: 96px; width: 46px; }
#h { background: #0f0; height: 96px; width: 16px; }
#i { background: #600; height: 16px; width: 96px; }
#j { background: #900; height: 16px; width: 146px; }
#k { background: #c00; height: 16px; width: 46px; }
#l { background: #f00; height: 16px; width: 16px; }
</style>
</head>

<body>
<div class=grid>
  <div id=a></div>
  <div id=b></div>
  <div id=c></div>
  <div id=d></div><br>
  <div id=e></div>
  <div id=f></div>
  <div id=g></div>
  <div id=h></div><br>
  <div id=i></div>
  <div id=j></div>
  <div id=k></div>
  <div id=l></div>
</div>
</body>
</html>
